Just wondering if anyone can help with my IM608 on a 14 vw Jetta tdi. Speedo showing about 20mph high even at a stop, no fault codes and shifting and turbo response is normal but I'm trying to read live speedo data thru the ECM but can't seem to navigate to a gauge/cluster module nor can I do find speedo live data in the ECM field. Posted this on Autel site but as usual, no get no responses. Don't think any english speakers actually use that forum.
How far is it out further up the speed range ? Check it against GPS and from the ABS and cruise control this will give clue if it is a setting or a cluster fault.
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